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Many of us will experience"lethologica", or difficulty finding words, in everyday life. And it usually becomes more prominent with age.from the University of Toronto suggests that it's the speed of speech, rather than the difficulty in finding words that is a more accurate indicator of brain health in older adults.
A novel aspect of this study was the use of a"picture-word interference task", a clever task designed to separate the two steps of naming an object: finding the right word and instructing the mouth on how to say it out loud. Verbal fluency tasks, which require participants to generate as many words as possible from a given category or starting with a specific letter within a time limit, may be used with picture-naming to better capture the"tip-of-the-tongue" phenomenon.
The verbal fluency test engages various brain regions involved in language, memory, and executive functioning, and hence can offer insights into which regions of the brain are affected by cognitive decline. By harnessing natural language processing technologies , which use computational techniques to analyse and understand human language data, this work advances previous studies that noticed subtle changes in the spoken and written language of public figures like
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